When Donald Trump won the presidency in 2016, the Republican Party already had control of both the Senate and the House of Representatives. Most of what he did with this rare double majority looks rather thin today: a failed attempt at repealing the Affordable Care Act, tax cuts, giving Bob Dole a gold medal. His other most notable legislative achievements, the United States-Mexico-Canada Agreement and the First Step Act, were passed after Democrats had retaken the House in 2018. Everything else he has done in office has been accomplished by executive order.
Otherwise, apart from his appointment of three justices to the Supreme Court, Trump’s first term has been defined largely by the things he has not done: dragged the United States into another war in the Middle East or meaningfully altered the balance of our trade relations with China.